#include <vector>
#include <iostream>
#include <stdio.h>
using namespace std;
class Matrices
{
	public:
		vector <vector<int> > matrix;
	public:
		Matrices ();
		Matrices(int);
		Matrices(int,int,int,int);
		void displaymatrix();
		void initializematrix(vector<vector<int> >);
		vector<vector<int> > getmatrix();
		Matrices operator +(Matrices);
		Matrices operator -(Matrices);
		Matrices operator *(Matrices);
};
